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Tennessee weather alerts

1 National Weather Service alert is in force in Tennessee, covering 33 of its 95 counties: a heat advisory.

Checked Sun, Sep 20, 2026, 3:16 PM CDT. Times are Central Daylight Time.

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Every watch, warning and advisory the National Weather Service has in force over Tennessee. Open it for the live map, where it pans and zooms.

Every watch, warning and advisory the National Weather Service has in force over Tennessee Open the live map with warnings and watches

Map layer from NOAA National Weather Service. Boundaries from the Iowa Environmental Mesonet.

Alerts in force1

Every product covering any part of Tennessee, worst first, with its full text.

Moderate 1

Heat Advisory

Moderate

Heat Advisory issued September 19 at 10:42PM CDT until September 20 at 7:00PM CDT by NWS Nashville TN

Issued Until 3 hr 44 min left

Areas Stewart, TN; Montgomery, TN; Robertson, TN; Sumner, TN; Macon, TN; Clay, TN; Houston, TN; Humphreys, TN; Dickson, TN; Cheatham, TN; Davidson, TN; Wilson, TN; Trousdale, TN; Smith, TN; Jackson, TN; Putnam, TN; Overton, TN; Perry, TN; Hickman, TN; Lewis, TN; Williamson, TN; Maury, TN; Marshall, TN; Rutherford, TN; Cannon, TN; De Kalb, TN; White, TN; Bedford, TN; Coffee, TN; Warren, TN; Wayne, TN; Lawrence, TN; Giles, TN

County pages Bedford County, Cannon County, Cheatham County, Clay County, Coffee County, Davidson County, DeKalb County, Dickson County, Giles County, Hickman County, Houston County, Humphreys County, Jackson County, Lawrence County, Lewis County, Macon County, Marshall County, Maury County, Montgomery County, Overton County, Perry County, Putnam County, Robertson County, Rutherford County, Smith County, Stewart County, Sumner County, Trousdale County, Warren County, Wayne County, White County, Williamson County, Wilson County

Full text

* WHAT...Heat index values up to 108. * WHERE...Across Middle Tennessee. * WHEN...Until 7 PM CDT Sunday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

What to do

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.

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By county

Every county in Tennessee, with what is in force there now. Each page adds the county's warning history for the past year.

What this means

Warning
The hazard is happening or about to. Act now: a tornado warning means take shelter, a flash flood warning means move to higher ground.
Watch
Conditions favor the hazard. Nothing is happening yet; have a plan and be ready to act if a warning follows.
Advisory
A hazard that is less serious than a warning but can still cause trouble, such as dense fog, heat or light ice.
Statement
Information about weather that does not yet meet a warning: a strong storm, a hydrologic update, or a special weather statement.

Severity (extreme, severe, moderate, minor) is the rating the issuing office gives each product. More on the difference: tornado watch vs. tornado warning. Alerts come from the National Weather Service; follow its instructions and your local officials.

Sources

Alerts from the National Weather Service's public feed, read afresh every minute, and matched to counties and zones by their UGC codes. Warnings from outside the United States come from each country's own meteorological service. Follow the issuing office's instructions and your local officials.